Admittedly, I must be a smidgen OCD because, while I buy by the pound, it's weird for me to not use whole numbers. So I switched to grams... lol. Now I hate using strange numbers. I'm ok with them ending in 0 or 5, so that's a start. I also hate when I design a recipe and don't see a green check mark for stats. (I use Brewers Friend, they give you a green check mark if your stats are in keeping with the BJCP). It's like seeing a "like" on Facebook. Dopamine dump lol.
I am becoming a rebel lately though. Some of my favorites don't have green check marks, and I'm ok with that.
Now to try to make this a useful post.
Your need to use all of your hops might lead you to something you like better than what the popular wisdom dictates. Try moving them around, who knows. BUT, keep in mind that you are kind of chasing a ghost. Your IBU numbers are only calculated IBU and most likely are not very close to actual IBU in the finished beer. I look at IBU calculators as a rough estimator only. They are ok as a measuring stick to know what you did and adjust for the future.
Like others will say, the perceived character of the bitterness between X time in the boil and Y time in the boil can be so different that the calculated IBU will matter less and less.